I work for the railroad and was riding a railcar into a clear track when i noticed a blue light out of the corner of my eye. The object I saw was a bright blue disc traveling from north to south at a low rate of speed.I immediatley stopped the movement of my train.The object then became a brighter shade of blue and began accelarating leaving a short white trail it then flashed brilliantly and seemed to flash out of existence.I know from a lifetime of working nights that I did not see a meteorite it was clearly a blue disc flying on a crystal clear night.The whole experience lasted 4 to 5 seconds.